公开(公告)号：EP0789718B1

公开(公告)日：1998-04-08

申请号：EP95936129.6

申请日：1995-10-27

申请人： DSM N.V.

发明人： VAN BEEK, Johannus, Antonius, Maria ,  VAN DOREMAELE, Gerardus, Henricus, Josephus ,  GRUTER, Gerardus, Johannes, Maria ,  ARTS, Henricus, Johannes ,  EGGELS, Guillaume, Hermanus, Maria, Rene

IPC分类号： C08F10/00 ,  C08F4/64

CPC分类号： C08F10/00 ,  C08F4/619 ,  C08F4/61908 ,  C08F4/61912

公开(公告)号：EP0897379A1

公开(公告)日：1999-02-24

申请号：EP97919745.0

申请日：1997-04-25

申请人： DSM N.V.

发明人： GRUTER, Gerardus, Johannes, Maria ,  VAN BEEK, Johannes, Antonius, Maria

IPC分类号： B01J31 ,  C07B61 ,  C07C4 ,  C07C5 ,  C07C13

CPC分类号： B01J31/2295 ,  B01J2531/30 ,  B01J2531/40 ,  B01J2531/50 ,  B01J2531/60 ,  B01J2531/70 ,  B01J2531/80 ,  C07C4/08 ,  C07C2601/10 ,  C07C13/15

摘要： Process for converting a geminally substituted cyclopentadiene containing 2-6 substituents into a non-geminally substituted cyclopentadiene by reacting the geminally substituted cyclopentadiene with a base, sodium or potassium at a temperature of 0-200 °C. The invention also relates to mixtures of non-geminally substituted cyclopentadienes obtained by means of this process.

公开(公告)号：EP0789718A1

公开(公告)日：1997-08-20

申请号：EP95936129.0

申请日：1995-10-27

申请人： DSM N.V.

发明人： VAN BEEK, Johannus, Antonius, Maria ,  VAN DOREMAELE, Gerardus, Henricus, Josephus ,  GRUTER, Gerardus, Johannes, Maria ,  ARTS, Henricus, Johannes ,  EGGELS, Guillaume, Hermanus, Maria, Rene

IPC分类号： C08F4 ,  C08F10 ,  C08F32 ,  C08F36

CPC分类号： C08F10/00 ,  C08F4/619 ,  C08F4/61908 ,  C08F4/61912

摘要： The invention relates to a new catalyst composition which is suitable for the polymerization of an olefin and which comprises a reduced transition metal complex and a co-catalyst. The invention is characterized in that the transition metal complex consists of a reduced transition metal, chosen from groups 4-6 of the Periodic Table of the Elements, with a multidentate monoanionic ligand and with two monoanionic ligands. In particular the reduced transition metal is titanium (Ti).